Reef fish species at the extremes of the food chain — those that are strict herbivores or strict fish predators — evolve faster than fish species in the middle of the food chain with a more varied diet, according to a new study.
Reef fish species at the extremes of the food chain — those that are strict herbivores or strict fish predators — evolve faster than fish species in the middle of the food chain with a more varied diet, according to a new study.